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Java > Open Source Codes > com > caucho > server > thread > ScheduledExecutorServiceImpl


1 /*
2  * Copyright (c) 1998-2006 Caucho Technology -- all rights reserved
3  *
4  * This file is part of Resin(R) Open Source
5  *
6  * Each copy or derived work must preserve the copyright notice and this
7  * notice unmodified.
8  *
9  * Resin Open Source is free software; you can redistribute it and/or modify
10  * it under the terms of the GNU General Public License as published by
11  * the Free Software Foundation; either version 2 of the License, or
12  * (at your option) any later version.
13  *
14  * Resin Open Source is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
17  * of NON-INFRINGEMENT. See the GNU General Public License for more
18  * details.
19  *
20  * You should have received a copy of the GNU General Public License
21  * along with Resin Open Source; if not, write to the
22  *
23  * Free Software Foundation, Inc.
24  * 59 Temple Place, Suite 330
25  * Boston, MA 02111-1307 USA
26  *
27  * @author Scott Ferguson
28  */
29
30 package com.caucho.server.thread;
31
32 import com.caucho.util.L10N;
33 import com.caucho.util.ThreadPool;
34
35 import java.util.concurrent.Executor JavaDoc;
36 import java.util.logging.Logger JavaDoc;
37
38 /**
39  * A generic pool of threads available for Alarms and Work tasks.
40  */
41 public class ScheduledExecutorServiceImpl implements Executor JavaDoc {
42   private static final L10N L = new L10N(ScheduledExecutorServiceImpl.class);
43   private static final Logger JavaDoc log
44     = Logger.getLogger(ScheduledExecutorServiceImpl.class.getName());
45
46   private static ScheduledExecutorServiceImpl _service
47     = new ScheduledExecutorServiceImpl();
48     
49   private ThreadPool _threadPool = ThreadPool.getThreadPool();
50
51   private ScheduledExecutorServiceImpl()
52   {
53   }
54
55   public static ScheduledExecutorServiceImpl create()
56   {
57     return _service;
58   }
59
60   //
61 // java.util.concurrent
62 //
63
64   public void execute(Runnable JavaDoc task)
65   {
66     if (task == null)
67       throw new NullPointerException JavaDoc();
68     
69     _threadPool.schedule(task);
70   }
71 }
72
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